Tire-tool.



A. A. NEIJSOJN.

"TI-RE .TOOL.

APPLICATION 111L111) Jlmnza, 1911.

Patented Joan; 15, "1912.

3 provide a simple and highly efficient tool for 1 'AXEL A. NELSON, OF WASHINGTON, DISTRICT OF COLUMBIA.

TIRE-TOOL.

Specification of Letters .Patent.

Patented Oct. 15,1912.

Application filed June as, 1911. Serial nofesaass.

4'0 all whom it may concern:

Be it lmown that I, AXEL A. NELSON, of Washington, in the District of have invented certain new-and provements in Tire-Tools; and I do hereby declare the following to be exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the' same.

he primary object of this inventlon 1s to setting and removing automobile tires of the quick detachable type. The shoe orcasing of tires of this type is held in place between two rings, the outer one of whloh 1s retained by a locking ring which fits in an annular groove of the wheel rim. In app to Fig. 1.

lying the casing it is necessary that the outer rlng be forced inwardly a suflicient distance to enable the locking ring to be properly seated, and in many instances itis necessary.

to similarly force the outer ring to permit the locking ring to be unseated. Holding the outer ring out of the way has heretofore been attended with considerable difliculty; frequently the services of two persons being required, especially in applying the casing, and the difliculty is increased if the casing is new and hence relatively" stiff. I' have provided a simple device for engaging the outer ring and forcing 1t inwardly over the wheel rim, siich device being automatically locked in whatever position it may be placed and asit holds the ring and the cas ing out of the way, theoperator has his two hands free to apply or remove the locking ring. The same device may be employed for engagmg the inner side of a casing to force it from the rim.

The invention will be hereinafter set forth and particularly pointed out in the claim. vIn the accompanying drawings, Figure 1 is 'a side elevation of my device showing it applied to a wheel, :a portion only of which is shown, with the tire casing in section. Fig. 2 is a view of the device at right angles Fig. 3 shows therdevice as used for removing a casing. .Fig. 4 is a detached view of the spoke engaging hook. Fig. 5 is a .view of the spoke engaging end of the I rack-bar.

Referring to the drawings 1 designates the wheel of an automobile, a portion only Columbia, useful Ima full,clear, and I Y obstructed. For this purpose I provide a is formed by a concaved flange. The shoe of eas ng 5 is held in place between an inner ring 6, which seats against flange 3, and an outer ring 7 which 1s locked by a ring 8 which fits in seat 4:.

To insert the locking ring it is necessary that the outer ring 7 be forced inwardly over the rim s'ufliciently far to have a seat 4 unlever 10 which has an overhanging arm at one end, WhiCl} end is curved to conform to ring 7. The lever is placed substantially parallel with the wheel, and to it is pivotally secured a hook 12 which is designed to grip any one of the spokes of the wheel, and

to prevent scratching the hook is preferablyi covered'with leather or other soft material. The hook forms the fulcrum for the lever, and the pivot pin 13, upon which' the lever turns, may be passed through any one of a series ofholes in the hook, thus adapting the device to wheels of different sizes.

A strut shown in the form of'a rack-bar 14, carried by the lever, is designed to engage any one of the wheel spokesfand itself is engaged by a spring-pressed pawl 15 of the lever when the latter is pulled outwardly. By this means the lever is. braced and automatically locked in whatever position it may be placed by the operator, and as the pressure of the lever is suflicient to hold the outer ring 7 from interfering with the seating of the locking ring, it is manifest that the operator has his hands free'to manipulate such locking ring.

I have shown the rack-bar as having a shoe 16 pivoted to its inner end, which shoe is concaved to'conform tothe spoke, and it preferably is faced with soft material.

To enable the device to be used for forcing a casing from the wheel rim, as is frequently necessary where a casing has been long in use, I provide the lever with a short lateral arm or pro ect1on 17, which, when the lever 10 is inverted, as shown in Fig. 3, by engaging with the casing can force the-latter from the rim. This requires, however, that the point of connection of the hook 12 be changed, and for this purpose I have formed 1n the lever near its curved arm anopening 18to accommodate the fulcrum pin 13 when the position of the hook is changed. The device must necessarily be used in this way in remoying casings from rear wheels of automobiles; since brakes preclude 1t from being positioned over the inner face 1 of the wheel in the manner similar to that which it occupies in applying the casing, but it may be used in the latter way in removing the casings from thefront wheels.

From what has been said it will be observed that I have provided an. extremely vinexpensive tool for setting and removing tire casings; one which may be carried in the toolbox of an automobile; and that in applying the pressure to the casing ring the tool is automatically braced or locked in its ring-holding position, thereby leaving both hands of the operator free for manipulating the locking ring. It is only necessary to disengage the pawl from the rack-bar to enable the device to be removed, theouter ring being moved outwardly either from the rim or into engagement with the locking ring when the pressureof the holding lever is removed.

By means of my invention a great saving in time is effected in applying and removing casings from automobile wheels of the socalled quick detachable type.

I claim as my invention:

' A tire-casing tool comprising a lever having an oil-set arm at one end thereof for engaging the casing ring, a fulcrum bearing for said lever extending from the same between its ends to detachably engage a wheel spoke, and a strut located between said fulcrum and the handle end of the lever which is adapted to bear at one of its ends against the wheel and to adjustably engage the lever so as to hold the lever in different positions into which it may be moved when in engagement with the tire-casing.

In testimony whereof, I havesigned this specification in the presence of two subscribing witnesses.

' AXEL A. NELSON.

Witnesses: 1

JAMES H. SHELLY, FRANCIS S. MAGUIRE. 

